Squid is a member of the order Carassius, common carp subfamily, and widely salty fish. China's coastal areas are distributed and rich in resources. Carp has the characteristics of rapid growth, wide adaptability, strong disease resistance, and delicious meat. Deep love people welcome. In order to explore high-yielding aquaculture technology and increase economic efficiency, we have conducted high-yield aquaculture trials in the dried-fish carp farm of the Zilit River in the past three years. From 1995 to 1997, the average yield per mu was more than 1,000 kg for three consecutive years. The individual specifications were 500-1000 grams, and the profit per mu was 8,000 yuan. Now introduce the farming technology as follows: First, the construction of the pond to choose a rich source of water, fresh water pollution-free place to build pool. Each pond is 5-8 mu, with a rectangular shape, and the north-south direction is better. The bottom of the pool is required to be flat, sandy mud bottom, and the pool shore is firm with a depth of 2 meters. At the end, he has to put in the drainage and drainage pipes. At the same time with 1 to 2 sets of 1.5KW aerators, farms need to have generating standby units. When dredging, the dredging and disinfecting of the ponds should be well done. Before the release of seedlings, 50 kg of quicklime or 5 to 10 kg of bleaching powder dry ponds can be used for disinfection. Before laying the seedlings, the basic bait for cultivating the pool water should be fertilized so that the pool water is oil green or brownish brown. 2. Breeding of seedlings (1.5 to 2 cm in length) to be harvested from the sea area, desalinated to salinity of 4 to 7 Torr, put into temporary holding pool (1 degree of salinity), and the stocking species are natural seedlings in the northern sea area. Best, because of different physicochemical factors, seedlings grow faster, individuals larger, can shorten the breeding cycle, increase economic efficiency. The stocking density in the holding pool is controlled at 1 to 20,000 acre, and the pond is often flushed with oxygen. On the second day of the next day, fresh feeds such as zooplankton and red worms were started to be fed. The fish slurry, buoyant particles and bait were gradually mixed and fed, and gradually acclimated to feed the crushed fish larvae and buoyant pellet feed. . The daily feeding amount was 15% of the fish's body weight and was fed 3 times. During the holding period, it is disinfected once a week with 0.3ppm strong chlorine or 15ppm formalin. Three days before the start of feeding, 0.5g of furazolidone, 3 grams of oxytetracycline, and 1 gram of vitamin C are taken per 50kg of fish. Feeding once a day, even for 3 days. After more than 20 days of feeding, the fish grows to 4-6 cm in size and can be reared in large ponds. Third, feeding and management After the seedlings are sifted, they are bred by the size of the pool. The stocking density is generally 2500-3500 tails/mu. Water depth 1.5 meters or more, to maintain a suitable pool of water, with a transparency of 30 cm, the water was oil green is appropriate. Feeding twice a day, the main feed is crushed fish gizzards and buoyant pellet feeds. Vitamins B and C are added to the feed. Daily feed is 6% of the fish's weight. Every month, we also need to feed soil mold, erythromycin, vitamins and drugs for 2 times, each time for 3 days. At the same time, the whole pool of the pond was regularly disinfected with 0.4 ppm strong chlorine or 20 ppm formalin. Drug control should be used with caution such as trichlorfon and mercuric nitrate. Do a good job of patrol pond management every day, turn on oxygen at night or when the weather is hot and low, and find that the pool water is bad to drain water in time to keep the pool water fresh. Fourth, the disease prevention and control of carp strong disease resistance, natural conditions are not easy to get sick. However, due to the great changes in the living environment and space of artificial high-density culture, it is very easy to cause diseases. Disease prevention must be strengthened. Drugs should be regularly disinfected on the culture ponds and food tables, and diseases should be treated as soon as possible. Common fish diseases are: 1, intestinal inflammation disease fish swollen abdomen, anal swelling, squeezing the abdomen with pale yellow mucus outflow. It is mainly caused by feeding fresh and deteriorated feed. Treatment can be mixed with oxytetracycline feeding bait, each 50 kilograms of fish medication 10 grams, halved the next day, mixed bait continued feeding for 6 days, 2 grams of norfloxacin feeding can also be fed. 2. The body color of fish with gill disease is dark and roams out of the water and is unresponsive to the outside world. Open the lid, the silk is pale, and the small pieces rot. The reason is that the water quality becomes turbid after heavy rain and it is easy to infect the disease. In particular, after cages have been bred in heavy rain, the upstream sediment flow hits the fish. The carp is very susceptible to infection and the disease is very costly. Erythromycin can be used for treatment. 0.5 grams of medicine is used for every 50 kilograms of fish. Continuous bait is fed for 6 days. At the same time, 0.4 ppm of strong chlorine is used for sprinkling the pond or cage in the whole pool for 3 consecutive days. The treatment effect is obvious. . 3. The pectoral fins and dorsal fins of the fish with bleeding diseases are swollen and congested at the base of the fish. The disease is a viral infection that is highly contagious. Treatment can use viral spirits, antibiotics mixed feeding, every 50 kg of fish with 0.5 grams of virus Ling, norfloxacin 1 g, mixed bait, feeding for 6 days. At the same time, the pond was sputtered with 0.4ppm strong Chloride Quanchipa once a day for 3 consecutive days. 4, watery mildew disease occurs in the winter and spring seasons, the fish surface wounds attached to the gray cotton-like mycelium, fish body weakness, slowly died. The infection spreads quickly after infection. Treatment can use 0.1ppm malachite green Quanchiposa 2 to 3 days. At the same time, fry transportation and net-pull operations should also be carefully handled to avoid fish injuries. 5, parasitic diseases, fish body surface, fins appear white small bright spots, increased parasite mucus. Diseased fish do not ingest food. Their behavior is very different. They often swim around the pond. The common parasites are small melon insects, worms, and worms. Treatment can be carried out with 20 ppm formalin Quanchiposa for 2 days or with 0.1 ppm Malachite Green Quanchip for 2 days. Use drugs such as trichlorfon and organic phosphorus with caution in the treatment, otherwise it will cause salmon poisoning. Fifth, the general harvest until the end of the year can be used for commercial fish fishing market. The tangible ponds can be harvested at one time, and they can also be brought to market in batches according to changes in market demand. The latter should pay attention to the catch of the squid after the net has been released. Do not put it back in the pond. It will be injured due to the net and will die shortly after returning to the pool.
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